selftests/powerpc: Consolidate copy/paste test logic

This logic was shared between multiple tests, but now that we have
removed all but one of them we can just move it into that test.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

tools/testing/selftests/powerpc/alignment/.gitignore

 copy_first_unaligned
-copy_paste_unaligned_common
 alignment_handler

tools/testing/selftests/powerpc/alignment/Makefile

@@ -2,4 +2,4 @@ TEST_GEN_PROGS := copy_first_unaligned alignment_handler
 
 include ../../lib.mk
 
-$(TEST_GEN_PROGS): ../harness.c ../utils.c copy_paste_unaligned_common.c
+$(TEST_GEN_PROGS): ../harness.c ../utils.c

tools/testing/selftests/powerpc/alignment/copy_first_unaligned.c

@@ -11,15 +11,46 @@
  *
  */
 
+#include <signal.h>
 #include <string.h>
 #include <unistd.h>
 #include "utils.h"
 #include "instructions.h"
-#include "copy_paste_unaligned_common.h"
 
 unsigned int expected_instruction = PPC_INST_COPY_FIRST;
 unsigned int instruction_mask = 0xfc2007fe;
 
+void signal_action_handler(int signal_num, siginfo_t *info, void *ptr)
+{
+	ucontext_t *ctx = ptr;
+#ifdef __powerpc64__
+	unsigned int *pc = (unsigned int *)ctx->uc_mcontext.gp_regs[PT_NIP];
+#else
+	unsigned int *pc = (unsigned int *)ctx->uc_mcontext.uc_regs->gregs[PT_NIP];
+#endif
+
+	/*
+	 * Check that the signal was on the correct instruction, using a
+	 * mask because the compiler assigns the register at RB.
+	 */
+	if ((*pc & instruction_mask) == expected_instruction)
+		_exit(0); /* We hit the right instruction */
+
+	_exit(1);
+}
+
+void setup_signal_handler(void)
+{
+	struct sigaction signal_action;
+
+	memset(&signal_action, 0, sizeof(signal_action));
+	signal_action.sa_sigaction = signal_action_handler;
+	signal_action.sa_flags = SA_SIGINFO;
+	sigaction(SIGBUS, &signal_action, NULL);
+}
+
+char cacheline_buf[128] __cacheline_aligned;
+
 int test_copy_first_unaligned(void)
 {
 	/* Only run this test on a P9 or later */

tools/testing/selftests/powerpc/alignment/copy_paste_unaligned_common.c

-/*
- * Copyright 2016, Chris Smart, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Common code for copy, copy_first, paste and paste_last unaligned
- * tests.
- *
- */
-
-#include <signal.h>
-#include <string.h>
-#include <unistd.h>
-#include "utils.h"
-#include "instructions.h"
-#include "copy_paste_unaligned_common.h"
-
-unsigned int expected_instruction;
-unsigned int instruction_mask;
-
-char cacheline_buf[128] __cacheline_aligned;
-
-void signal_action_handler(int signal_num, siginfo_t *info, void *ptr)
-{
-	ucontext_t *ctx = ptr;
-#if defined(__powerpc64__)
-	unsigned int *pc = (unsigned int *)ctx->uc_mcontext.gp_regs[PT_NIP];
-#else
-	unsigned int *pc = (unsigned int *)ctx->uc_mcontext.uc_regs->gregs[PT_NIP];
-#endif
-
-	/*
-	 * Check that the signal was on the correct instruction, using a
-	 * mask because the compiler assigns the register at RB.
-	 */
-	if ((*pc & instruction_mask) == expected_instruction)
-		_exit(0); /* We hit the right instruction */
-
-	_exit(1);
-}
-
-void setup_signal_handler(void)
-{
-	struct sigaction signal_action;
-
-	memset(&signal_action, 0, sizeof(signal_action));
-	signal_action.sa_sigaction = signal_action_handler;
-	signal_action.sa_flags = SA_SIGINFO;
-	sigaction(SIGBUS, &signal_action, NULL);
-}

tools/testing/selftests/powerpc/alignment/copy_paste_unaligned_common.h

-/*
- * Copyright 2016, Chris Smart, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Declarations for common code for copy, copy_first, paste and
- * paste_last unaligned tests.
- *
- */
-
-#ifndef _SELFTESTS_POWERPC_COPY_PASTE_H
-#define _SELFTESTS_POWERPC_COPY_PASTE_H
-
-#include <signal.h>
-
-int main(int argc, char *argv[]);
-void signal_action_handler(int signal_num, siginfo_t *info, void *ptr);
-void setup_signal_handler(void);
-extern char cacheline_buf[128] __cacheline_aligned;
-extern unsigned int expected_instruction;
-extern unsigned int instruction_mask;
-
-#endif /* _SELFTESTS_POWERPC_COPY_PASTE_H */